"Unaccurateness" is a word in ENGLISH

Any literary matter added to a book, but not necessarily essential to its completeness, and thus distinguished from supplement, which …

An allowance made for inaccuracy in an instrument; as, chronometer correction; compass correction.

Omission, inaccuracy, or defect in a record.

A wandering or deviation from the right course or standard; irregularity; mistake; inaccuracy; something made wrong or left wrong; as, …

The state of being false; contrariety to the fact; inaccuracy; want of integrity or uprightness; double dealing; unfaithfulness; treachery; perfidy; …

of Inaccuracy

That which is inaccurate or incorrect; mistake; fault; defect; error; as, in inaccuracy in speech, copying, calculation, etc.

The quality of being inaccurate; want of accuracy or exactness.

The quality of being incorrect; want of conformity to truth or to a standard; inaccuracy; inexactness; as incorrectness may in …